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1.发明授权
公开(公告)号：US2711997A
公开(公告)日：1955-06-28
申请号：US25719451
申请日：1951-10-24
Applicant: BASF AG
Inventor： HANS-GEORG TRIESCHMANN , WILLIBALD ENDER , LOTHAR REUTER , WALDTRANT FROESE
IPC: C08K5/109
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